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公开(公告)号：US11918725B2
公开(公告)日：2024-03-05
申请号：US17518224
申请日：2021-11-03
申请人： CardiacAssist, Inc.
IPC分类号： A61M1/36 , A61M25/00 , A61M60/13 , A61M60/165 , A61M60/38 , A61M60/859 , A61M60/113
CPC分类号： A61M1/3659 , A61M25/0026 , A61M25/0029 , A61M25/007 , A61M60/13 , A61M60/165 , A61M60/38 , A61M60/859 , A61M2025/0031 , A61M2025/0039 , A61M25/005 , A61M60/113
摘要： A dual lumen coaxial cannula, assembly includes a first infusion tube having a first elongate body defining a first lumen therethrough and a second drainage tube co-axially aligned with the first infusion tube and having a second elongate body with a second lumen defined by a space between the first infusion tube and second drainage tube. A connector is removably attached to the first infusion tube and the second drainage tube for coupling the dual lumen coaxial cannula to an extracorporeal blood circuit. The first infusion tube and the second drainage tube include a plurality of infusion and drainage apertures, respectively, provided at the distal end and extending through the sidewall of the first infusion tube and the drainage tube, respectively.
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公开(公告)号：US20230233746A1
公开(公告)日：2023-07-27
申请号：US17582708
申请日：2022-01-24
申请人： CardiacAssist, Inc.
发明人： Michael J. Linehan
CPC分类号： A61M1/1698 , A61M1/28 , A61M1/267 , A61M1/3659 , A61M1/3666 , A61M2205/3334
摘要： A dual lumen drainage cannula configured for use in a veno-arterial extracorporeal membrane oxygenation (VA ECMO) system includes a first drainage tube having a proximal end, a distal end, and at least one aperture defined proximate its distal end and in fluid communication with the lumen of the first drainage tube, and a second drainage tube having a proximal end, a distal end, and at least one aperture defined proximate its distal end and in fluid communication with the lumen of the second drainage tube. The dual lumen drainage cannula further includes a flow restrictor disposed within the lumen of at least one of the first and second drainage tubes, configured to adjust the flow distribution of blood flow through the lumens of the first and second drainage tubes.
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公开(公告)号：US11344659B2
公开(公告)日：2022-05-31
申请号：US17554575
申请日：2021-12-17
申请人： CardiacAssist, Inc.
IPC分类号： A61M60/00 , A61M1/36 , A61M60/857 , A61M25/00 , A61M60/113
摘要： A dual lumen coaxial cannula assembly includes a first infusion tube having a first elongate body defining a first lumen therethrough and a second drainage tube co-axially aligned with the first infusion tube and having a second elongate body with a second lumen defined by a space between the first infusion tube and second drainage tube. A connector is removably attached to the first infusion tube and the second drainage tube for coupling the dual lumen coaxial cannula to an extracorporeal blood circuit. The first infusion tube and the second drainage tube include a plurality of infusion and drainage apertures, respectively, provided at the distal end and extending through the sidewall of the first infusion tube and the drainage tube, respectively.
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公开(公告)号：US20210268162A1
公开(公告)日：2021-09-02
申请号：US16803395
申请日：2020-02-27
申请人： CardiacAssist, Inc.
发明人： Michael J. Linehan
摘要： A cannula includes a tube having a proximal end, a distal end, and a tubular sidewall extending between the proximal end and the distal end. The cannula further includes an extendable member provided on a portion of the sidewall. The extendable member is configured to extend radially outward from the sidewall. The sidewall defines an aperture located between the proximal end and the distal end of the main tube.
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公开(公告)号：US20200230308A1
公开(公告)日：2020-07-23
申请号：US16810456
申请日：2020-03-05
申请人： CardiacAssist, Inc.
摘要： A veno-arterial extracorporeal membrane oxygenation system includes a dual lumen drainage cannula configured for withdrawing blood from a patient's vasculature in a manner that provides a perfusion of oxygenated blood with reduced carbon dioxide content while unloading the left ventricle, with two points of access to the patient's vasculature. The dual lumen drainage cannula has a first drainage tube and a second drainage tube co-axially aligned with the first drainage tube. The first and second drainage tubes are fluidly coupled to a connector. A blood pump having a pump inlet is configured for fluidly connecting with the connector, while an oxygenator having an oxygenator inlet is configured for fluidly connecting with a pump outlet. An infusion cannula is configured for fluidly connecting with an oxygenator outlet for infusing oxygenated blood into a patient's bloodstream.
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公开(公告)号：US10695473B2
公开(公告)日：2020-06-30
申请号：US15562727
申请日：2016-03-31
申请人： CardiacAssist, Inc.
发明人： Robert G. Svitek , Jerry Stokes , Patrick A. Kelly , Anthony McCoppin , Patrick A. Murawski , Travis Deschamps , Patrick E. Lutz , John C. Marous, III
摘要： A system for assisting a patient's heart has a pump, an oxygenator, a holder having a pump receiving portion for removably receiving the pump and an oxygenator receiving portion for removably receiving the oxygenator, and a harness configured to surround at least a portion of a patient's torso. The holder is connected to the harness. The system further has a brace connected to at least a portion of the harness. The brace is configured to extend behind a back portion of a user's head and to support tubing connected to at least one of the pump and the oxygenator. A priming tray and wet-to-wet connector connecting the cardiac assist system to the cannula so are also disclosed.
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公开(公告)号：US20240033499A1
公开(公告)日：2024-02-01
申请号：US17815710
申请日：2022-07-28
申请人： CardiacAssist, Inc.
IPC分类号： A61M60/845 , A61M60/117
CPC分类号： A61M60/845 , A61M60/117 , A61M2025/0004
摘要： A cannula for an ECLS system may include a tubular member and an actuatable structure. The actuatable structure may be responsive to an external stimulus such that an inner diameter of the tubular member changes as the external stimulus changes. A system may include the cannula and a controller in electrical communication with the actuatable structure. The controller may be user-configurable to set a desired value for an inner diameter of the tubular member. A method of connecting a patient's vasculature to an ECLS system may include advancing a delivery sheath into the vasculature, moving the delivery sheath relative to the cannula to expose the cannula within the vasculature, and shifting the actuatable structure from a first configuration to a second configuration while at least a portion of the cannula is disposed within the vasculature to change an inner diameter of the tubular member.
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公开(公告)号：US20240033471A1
公开(公告)日：2024-02-01
申请号：US18483730
申请日：2023-10-10
申请人： CardiacAssist, Inc.
发明人： Patrick A. Kelly , Jerry Stokes , Robert G. Svitek
CPC分类号： A61M25/0026 , A61M60/00 , A61M25/007 , A61M39/105 , A61M1/3659
摘要： A dual lumen coaxial cannula assembly including a first infusion tube having a proximal end, a distal end, and a sidewall extending circumferentially therebetween, as well as a second drainage tube co-axially aligned with the first infusion tube, the second drainage tube having a proximal end, a distal end, and a sidewall extending circumferentially therebetween. The assembly also includes a connector assembly, which has an inlet portion through which a portion of the first infusion tube is configured to extend and an outlet portion through which a portion of the second drainage tube is configured to extend. The connector assembly is configured to enable selective axial displacement of the first infusion tube through the second drainage tube.
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公开(公告)号：US20240033408A1
公开(公告)日：2024-02-01
申请号：US17876012
申请日：2022-07-28
申请人： CardiacAssist, Inc.
CPC分类号： A61M1/1698 , A61B5/14542 , A61M2205/3334 , A61M2202/0208
摘要： An extracorporeal blood treatment system including a blood oxygenator having an inlet for receiving deoxygenated blood and an outlet for expelling oxygenated blood. The system also includes a recirculation flow path for recirculating a portion of the oxygenated blood exiting the oxygenator outlet back into the oxygenator inlet. The system may also include a dual-lumen cannula coupled to the oxygenator. The cannula includes a manifold with a first blood pathway communicating with the oxygenator outlet, a second blood pathway communicating with the oxygenator inlet, and a third blood pathway connecting the first blood pathway to the second blood pathway. The manifold passes oxygenated blood received from the oxygenator through the first blood pathway, passes deoxygenated blood received from the patient through the second blood pathway, and passes a portion of the oxygenated blood from the first blood pathway through the third blood pathway to be combined with deoxygenated blood in the second blood pathway.
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公开(公告)号：US11786719B2
公开(公告)日：2023-10-17
申请号：US17146183
申请日：2021-01-11
申请人： CARDIACASSIST, INC.
IPC分类号： F04D7/04 , A61M60/232 , A61M60/221 , A61M60/422 , F04D25/06 , F04D29/046 , F04D29/42 , A61M60/814 , A61M60/825 , A61M60/113
CPC分类号： A61M60/232 , A61M60/113 , A61M60/221 , A61M60/422 , A61M60/814 , A61M60/825 , F04D7/04 , F04D25/06 , F04D29/046 , F04D29/426
摘要： A centrifugal blood pump includes a housing having a pumping chamber, an inlet having an inlet axis, and an outlet having an outlet axis. The inlet and the outlet are in fluid communication with the pumping chamber. The pump further includes an impeller rotatably disposed within the pumping chamber, and a strut connected to the housing at the inlet. The strut is connected to the housing at a circumferential position about the inlet axis such that a major axis of the strut and the outlet axis define a predetermined angle in a cross-sectional plane perpendicular to the inlet axis. The circumferential position of the strut relative the outlet axis reduces or eliminates damage to blood flowing around the strut.
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